How does it work? connects two groups of people: those who have a sustainable build project with those interested in learning sustainable building techniques. When a sustainable build project is listed on, volunteers (dubbed POOSHers!) can then contact projects to visit and learn practical skills in sustainable and natural building. Volunteers can then take these valuable skills with them when they leave, thus allowing more people to learn these techniques for free. is proud that its service can be utilised by both skilled and unskilled persons alike!